Can I lock the viewport to always jump to what is currently selected?
Note that there is a keyboard shortcut for locking the view to the selected object, ShiftNumpad . (Not sure if you knew already or not, but It might make your workflow faster)

Python:

You could use the python api to create a simple script to lock the view to the selected object for all 3D views:

import bpy

for area in bpy.context.screen.areas:
    if area.type == 'VIEW_3D':
        for space in area.spaces:
            if space.type == 'VIEW_3D':
                if space.region_3d.view_perspective == 'ORTHO': # if view is orthographic, do the following:
                    space.lock_object = bpy.context.object # Set the view lock object to the active object


Here is the above code made into an addon based on the addon tutorial in the Blender API reference:

bl_info = {
    "name": "Lock all views to active",
    "category": "3D View",
    "description": "Sets all the 3D views to be locked to the active object",
    "location": "Ctrl+Shift+Space",
}

import bpy


class ViewLockAll(bpy.types.Operator):
    """Lock all views to selected objects"""
    bl_idname = "view3d.lock_all_to_active"
    bl_label = "Lock all views to active object"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self, context):

        for area in bpy.context.screen.areas:
            if area.type == 'VIEW_3D':
                for space in area.spaces:
                    if space.type == 'VIEW_3D':
                        if space.region_3d.view_perspective == 'ORTHO':
                            space.lock_object = bpy.context.object

        return {'FINISHED'}


addon_keymaps = []


def register():
    bpy.utils.register_class(ViewLockAll)

    # handle the keymap
    wm = bpy.context.window_manager
    km = wm.keyconfigs.addon.keymaps.new(name='Object Mode', space_type='EMPTY')
    kmi = km.keymap_items.new(ViewLockAll.bl_idname, 'SPACE', 'PRESS', ctrl=True, shift=True)
    addon_keymaps.append((km, kmi))

def unregister():
    bpy.utils.unregister_class(ViewLockAll)

    # handle the keymap
    for km, kmi in addon_keymaps:
        km.keymap_items.remove(kmi)
    addon_keymaps.clear()


if __name__ == "__main__":
    register()


You can install this like any other addon. It will create an operator called ViewLockAll and a keyboard shortcut CtrlShiftSpace for calling it.